From: Robert Love <rml@tech9.net>
To: linux-kernel@vger.kernel.org
Cc: cliff@oisec.net, jjs@toyota.com, andy@spylog.ru, nigel@nrg.org
Subject: Updated Linux 2.4.9/2.4.10 kernel preemption patches
Date: 29 Aug 2001 01:35:26 -0400 [thread overview]
Message-ID: <999063343.2134.84.camel@phantasy> (raw)
Updated patches are at:
http://tech9.net/rml/linux/patch-rml-2.4.9-ac3-preempt-kernel-1
and,
http://tech9.net/rml/linux/patch-rml-2.4.10-pre2-preempt-kernel-1
for kernels 2.4.9-ac3 and 2.4.10-pre2.
These are updates of Nigel Gamble's kernel preemption patches for recent
kernels. See http://kpreempt.sourceforge.net/. These patches create a
configure option to enable a preemptible kernel using SMP lock points.
A preemptible kernel will yield control of execution to higher priority
processes as needed. Ie, the process timeslice now applies to kernel
space.
Changes since my previous patch:
* update for 2.4.9-ac3 and 2.4.10-pre2
* fix the compile bug (yay!) -- the linking dependency of dec_and_lock
requires CONFIG_HAVE_DEC_LOCK which SMP sets in recent kernels. now
CONFIG_PREEMPT sets, too
So, yes, this should fix the kernel compile buggy. At least it did for
me, after I was finally able to reproduce the problem.
Enjoy and please comment, test, and benchmark.
--
Robert M. Love
rml at ufl.edu
rml at tech9.net
reply other threads:[~2001-08-29 5:34 UTC|newest]
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